CN85101122A - bicycle locking device - Google Patents

Abstract

Bicycle locking device comprises a lock, and this lock is made up of the lock body of band key hole and the device that drives a locking bar at least, and locking bar can be in the extended and retracted position repeatedly.At extended position, locking bar can insert at least one and be installed in the hole or groove that processes on the rotational parts on the vehicle frame.The major part of Vehicle lock structure---lock body---is the inseparable down tube two ends that connect axis and preceding pipe and inclination certain angle of ceding territory to be installed in fact.Best locking measure is to leave at least one groove on bicycle middle shaft, in the free end insertion groove with locking bar.

Description

Bicycle locking device

The invention relates to the blocking device of bicycle, this device is made up of the lock body of band key hole and the device that drives a locking bar at least, locking bar one end is packed in the lock body, can be in repeatedly and stretch out and punctured position, by being installed in lock device on one's body, locking bar can be pinned at extended position at least, and have only a key or similar object to insert key hole, locking bar could be returned to punctured position.Above-mentioned lock body can be packed in the bicycle frame tube and is connected with it, can be roughly along pipe line of centers crank motion with hour locking lever; At extended position, the free end of locking bar can insert at least one and be installed in the hole or groove that the rotation on the vehicle frame leaves on the part in addition.Above-mentioned blocking device can be learnt from No. 2380 patents of Holland.

Stealing and illegal use bicycle are serious day by day problems.Up to today, the means that stop this evil actions only are to pin trailing wheel with lock, make car not ride away and or adopt chain or steel rope that car is tied up to such being fixed on the object on the ground of street lamp post.

But recent to steal the car criminal all well-equipped, and they can cut off above-mentioned chain or steel rope with speciality tool, or simply the bicycle board that pins with lock, then that lock is sawed-off or with additive method car is transported to secluded part.Stealing the bicycle that comes like this can use and sell fully at any time.

In known blocking device the lock body of lock be installed in vehicle frame in the pipe and it is fastened on the tube wall at screw, some distances of last thrust bearing of pipe before its point of connection leaves, locking bar can insert preceding manage and the hole of stem in.

After the bicycle that utilizes above-mentioned known blocking device to pin was illegally transported, criminal can cut off stem, mentions handlebar, unclamp the spiral nail of fastening lock lock body, locking bar is released from the hole of stem and preceding pipe, only need be changed then and pay the new car handle, bicycle is reused.

In addition, adopt above-mentioned known blocking device after, the height of bicycle handle bar can't be adjusted, and this device can only be applicable to man's bicycle.

Purpose of the present invention is exactly to produce the sort of lock that this paper begins to mention, and this lock is such design-calculated, and when it pinned, bicycle is in fact forever can not running condition.Like this, if just can only could open by a lock by damaging the rotatable parts and the cycle frame that pin without key, the result, only surplus several the parts of pulling down in addition also can use.

Take following method can reach our purpose.According to the present invention, the lock body becomes one with the inclination down tube that connects axis and preceding pipe in blocking device, and the two ends of lock body connect together with above-mentioned inseparable the ceding territory of pipe down in fact.In design-calculated blocking device like this, be used for the hole or the groove of latch lever both can before interior, leave on the tube wall, also can on axis, leave, in other words, both can pin handlebar, also can pin axis.If adopt two locking bars, then can pin both simultaneously.In this case, lock lock body then constitutes the parts of the pipe support that connects two quilt lock ends better.Like this, there is not key just can only then, from above-mentioned hole and groove, to take out disconnected locking bar and come a lock to take off by sawed-off or burn pipe support and near the locking bar of the lock body.As a result, also need the pipe support reparation, in fact such damage can't be repaired.

If pack a guide with holes in the end of above-mentioned pipe support, locking bar is led by forming bearing fit with this hole, simultaneously, and the locking pin of on locking bar, packing into, pin is between the free end of guide and locking bar and make on its self-lock rod and extend radially.Like this, just the locking bar of patchhole or groove can not be transferred to.In this case, if resemble above-mentioned sawed-offly or burn pipe support and locking bar, the boom end in insertion groove or hole can not be extracted, and this is because pin is directed to the cause that part blocks.

If the lock body constitutes an end of above-mentioned pipe support, so that its end with exposed surface is fixed in the interface of one of pipe support joint.At this moment, wanting to unload locking bar is impossible equally.Therefore in order to unload locking bar, must be sawed-off or burn adaptor union, will damage vehicle frame like this, so that unmendable.

Someone can say that No. 40050 patents of Holland disclose a kind of bicycle locking device, and in this device, the locking bar through the pipe support from axis to preceding pipe can pin interior preceding pipe at an angle.But, this locking bar moving do be by a complex mechanism be inserted in the key of locking by rotation and extract after again rotation central axis handle.Lock body is loaded in the standpipe that connects vehicle seat and axis, so, can lock be opened by pulling down axis.

More detailed description of the present invention is referring to each embodiment in figure below.

Fig. 1 is a bicycle of loading onto blocking device of the present invention.

The cutaway view of Fig. 2 for amplifying, the locking of preceding pipe in the expression.

The cutaway view of Fig. 3 for amplifying, the locking of expression axis.

Fig. 4 is another embodiment of locking axis.

Bicycle shown in Figure 1, comprise a vehicle frame, vehicle frame by manage 1 on the level, preceding pipe 2, down manage 3 and standpipe 4 form, under manage 3 at a certain angle in the past pipe be connected to axis, above-mentioned all pipes are connected to each other by adaptor union 5,6,7,8, rotating front fork 9 and stem 10 are installed in the preceding pipe and are connected to each other, and rotating middle shaft 11 is installed in the adaptor union 7.

As shown in Figure 2, preceding pipe 2 comprises an outer preceding pipe 12 and interior preceding pipe 13, pipe 12 is fixed in the interface 6 ' of adaptor union 6, pipe 13 is connected with front fork 9, pipe 13 passes through two thrust bearings with respect to outer preceding pipe and adaptor union 6 movable installations before interior, only show down thrust bearing 14 among the figure, last thrust bearing is in the position of adaptor union 5, pipe 13 the insides before stem 10 is positioned at, utilize the effect of expanding nut 15 and expansion bolt 16 to make on its inwall that is close to pipe 13, the bottom of stem 10 is processed with many grooves 17 in order to insert the protruding wing 15 ' of guiding of expanding nut 15, also have a protective tube 18 that plays booster action, it play simultaneously when expanding nut 15 is deviate from expansion bolt 16, prevent its fall in the effect of preceding pipe.

Shown in Fig. 2 was further, following pipe 3 did not extend through the interface 6 of adaptor union 6 " locate, and following pipe 3 and interface 6 " be to link to each other by lock lock body 19.In lock body part, the internal diameter of the actual upper and lower pipe 3 of the external diameter of part 19 ' is identical, couples together so it is pushed down the suitable for reading of pipe 3 and weld with melting welding or low-temperature alloy.The other end of lock body 19 adopts same connection method and interface 6 " permanently connect; lock has a key hole 20 switch lock that the key (not shown) can be inserted in the hole on the body 19; end of first locking bar 21 is contained in the lock body 19; and can be between extended position (position among the figure) and punctured position (among the figure shown in the dotted line 21 ') crank motion, for example pass through the key in the key hole 20.At extended position, locking bar free end 21 patchholes 13 ' and 18 ', open respectively before interior on pipe 13 and the protective tube 18 in hole 13 ' and 18 ', the result, interior before pipe 13 so that stem 10 all can not rotate again and make the bicycle can not handle.Lock is equipped with in the body 19 when locking bar 21 stretches out the device of its pinning, and this locking has only the key that is inserted in the key hole 20 by rotation just can open.Machining hole 13 ' and 18 ' is opened on so a bit, and promptly front fork has a low-angle with respect to vehicle body when latched position, so that bicycle can not carry out forward along straight line, it is extremely difficult so without approval any and attempt being pushed away away the people of bicycle.

As shown in Figure 3, one end of second locking bar 22 can be packed into and lock body 19, locking bar 22 under manage and reach in 3 near the axis 11 always, this bar 22 is also available with the same mode of locking bar 21 crank motion between the position that the extended position shown in Fig. 3 and dotted line are represented, can pin at extended position simultaneously.At the extended position of locking bar 22, the free end of this bar can be inserted in the groove of leaving on the axis 11 11 ', the result, and this axis can not rotate and axially also be lockable again, makes axis non-disconnectable down.In the embodiment that Fig. 3 represents, have 4 grooves 11 ' on the axis 11.Like this, need only rotating middle shaft 11 a little, just always have a groove and aim at locking bar 21.The interface 7 ' of adaptor union 7 comprises a guide 23, and this part fixes in the interface 7 ' by melting welding or low-temperature alloy solid welding; One plastic jacket 24 also is housed in the interface 7 ', and locking bar 22 leads by the sliding fit with cover.The locking pin 25 that extends radially is contained in the free end of locking bar 22 near bar, position shown among the figure 25 '.Locking pin will be run on the guide 23 if someone attempts to extract locking bar 22, as hereinafter will describing in detail.

Obviously, lock 19 also can assemble a locking bar 21, utilizes this part only bicycle handle bar to be pinned.If adopt two locking bars 21 and 22, lock body 19 should be provided with in an advantageous manner, promptly roughly at the middle part of managing 3 down, as among Fig. 1 19 " the position.

In the embodiment shown in fig. 4, lock body 19 " end be fixed on down pipe 3 ' bottom; the other end is fixed on the interface 7 of adaptor union 7 ' " in, short locking bar 22 ' is packed into and is locked body 19 ' ' ', it also can adopt the mode the same with locking bar 22 to insert the groove 11 of axis 11 ' " in.Here, lock body 19 ' ' ' on key hole 20 is set ", insert key from key hole and can make locking bar 22 ' return to punctured position 22 ".

If the handle mechanism of bicycle is lockable resembling among Fig. 2, do not having under the situation of key, the unique method of unblanking is exactly sawed-off or burns interface 6 ".Like this, bicycle rack is damaged and can't repairs.Equally, the locking means shown in the application drawing 4 is not having under the situation of key, and the unique method of unblanking is exactly sawed-off interface 7 ", so not only vehicle frame is damaged but also middle axle construction also is damaged, and can't repair equally.

Roughly be loaded on down the lock 19 at pipe 3 middle parts for (among Fig. 1) ", can be at lock 19 " near sawed-off down pipe 3 and run through wherein locking bar portion extracts from corresponding hole or groove so that locking bar breaks.But if use the design of representing as Fig. 3, then locking bar can not be extracted, because it is blocked by stop pin 25.

Locking bar 21,21 ' and 22 ' preferably utilizes the spring device (not shown) to place extended position.For example, by key, spring device is tensioned, then by rotate stem and or axis, make above-mentioned hole or groove place locking bar free end front, then this free end is by in spring force pressure hand-hole or the groove.

The lock body 19,19 ", 19 ' ' ' also can design as follows, promptly at first locking bar is placed extended position with hand, by key it is pinned then.

Claims (7)

1, bicycle locking device, comprise a lock, this lock is made up of the lock body of band key hole and the device that drives a locking bar at least, one end of the locking bar lock body and can stretching back and forth of packing into, utilization is contained in lock device on one's body and locking bar can be pinned at extended position at least, only can utilize key and similar object to insert key hole simultaneously and make locking bar return to punctured position; This lock body is loaded on the pipe of cycle frame and is attached thereto.Locking bar can be roughly along pipe line of centers crank motion, at extended position, its free end can insert at least one and be installed in the hole or groove that the rotation on the vehicle frame leaves on the part in addition, the lock body that it is characterized in that the constituent apparatus main portion becomes one with the inclination down tube that connects axis and preceding pipe, and the two ends of lock body connect together with above-mentioned inseparable the ceding territory of pipe down in fact.

2,, be characterised in that by on bicycle middle shaft, leaving at least one groove the lock free end is inserted according to the described device of claim 1.

3,, be characterised in that hole that locking bar inserts opens before interior on the pipe according to the described device of claim 1.

4,, be characterised in that the lock body constitutes an end of above-mentioned pipe support, so that the outer end of lock body is fixed in the interface of above-mentioned vehicle frame adaptor union according to the described device of claim 1 to 3.

5,, be characterised in that the lock body constitutes a part of pipe support between above-mentioned vehicle frame pipe two ends according to the described device of claim 1 to 3.

6, according to the described device of claim 5, a guide with holes is equipped with in the end that is characterised in that above-mentioned pipe support, locking bar leads by the bearing fit with this part, and a locking pin that extends radially is housed on the locking bar, and pin is between locking bar free end and guide.

7,, be characterised in that locking bar can place extended position by spring structure according to the described device of claim 1 to 6.

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